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- Lifestudio Flex EF-71 vs LSD400HD
Epson Lifestudio Flex EF-71 vs ViewSonic LSD400HD
What Lifestudio Flex EF-71 does better (3) and where LSD400HD wins (5) — every spec side by side.
vs
3.7Picture7.7
6.4Setup & placement4.3
9.0Noise, lifetime & portability7.8
Dimensions
Size comparison
Lifestudio Flex EF-71LSD400HD
| Lifestudio Flex EF-71 | LSD400HD | Difference | |
|---|---|---|---|
| Height | 249 mm | 129 mm | +120 mm |
| Width | 190 mm | 280 mm | −90 mm |
| Depth | 190 mm | 216 mm | −26 mm |
| Weight | 4 kg | 3 kg | +1 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is Lifestudio Flex EF-71 better than LSD400HD?
- Automatic keystone correctionYes · LSD400HD: No
- Fan noise23 dB vs 32 dB+39%
- Contrast ratio (dynamic / claimed)5,000,000:1 vs 3,000,000:1+67%
Why is LSD400HD better than Lifestudio Flex EF-71?
- Brightness (ANSI / ISO lumens)700 lm vs 4,400 lm6.3×
- Light source life20,000 h vs 30,000 h+50%
- Largest image size150″ vs 300″2×
- HDMI inputs1 vs 22×
- Weight4 kg vs 3 kg+33%
Specifications
Side by side
| Picture | ||
| Resolution (on screen) | 1920 × 1080 (Full HD) | 1920 × 1080 (Full HD) |
| Native panel resolution | 1920 × 1080 (Full HD) | 1920 × 1080 (Full HD) |
| Display technology | 3LCD | DLP |
| Light source | LED | Laser |
| Brightness (ANSI / ISO lumens) | 700 lm | 4,400 lm |
| Contrast ratio (dynamic / claimed) | 5,000,000:1 | 3,000,000:1 |
| HDR support | Yes | — |
| HDR formats | HDR10, HLG | — |
| Motion interpolation (MEMC) | Yes | — |
| Gaming | ||
| Maximum refresh rate | — | 120 Hz |
| Game / low-latency mode | Yes | — |
| Lens & placement | ||
| Throw ratio | 1.2:1 | 1.48:1 |
| Throw ratio (zoomed in) | — | 1.62:1 |
| Throw type | Standard throw (1.0:1 and longer) | Standard throw (1.0:1 and longer) |
| Distance for a 100″ 16:9 image | 2.66 m | 3.28 m |
| Smallest image size | 30″ | 30″ |
| Largest image size | 150″ | 300″ |
| Lens shift | None | None |
| Keystone correction | Yes | Yes |
| Automatic keystone correction | Yes | No |
| Obstacle avoidance | Yes | — |
| Automatic screen fit | Yes | — |
| Sound | ||
| Built-in speakers (total output) | 10 W | — |
| Smart & streaming | ||
| Smart platform | Google TV | — |
| Built-in smart platform | Yes | — |
| Netflix (officially licensed) | Yes | — |
| Wi-Fi | Yes | — |
| Bluetooth | Yes | — |
| Chromecast built-in | Yes | — |
| Connectivity | ||
| HDMI inputs | 1 | 2 |
| HDMI version | — | 2 |
| HDMI eARC | Yes | — |
| USB port | Yes | Yes |
| Ethernet (LAN) | No | No |
| VGA input | No | No |
| Audio output | Yes | Yes |
| Battery, power & lifetime | ||
| Power consumption | 83 W | — |
| Light source life | 20,000 h | 30,000 h |
| Light source life (eco mode) | — | 20,000 h |
| Design & noise | ||
| Fan noise | 23 dB | 32 dB |
| Fan noise (eco mode) | 20 dB | 27 dB |
| Weight | 4 kg | 3 kg |
| Width | 190 mm | 280 mm |
| Height | 249 mm | 129 mm |
| Depth | 190 mm | 216 mm |
| Colours | White | White |
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